A) \[1\frac{1}{2}\] Year
B) \[2\frac{1}{2}\] Years
C) 2 Years
D) none of these
Correct Answer: C
Solution :
[c] \[A=P\left( 1+\frac{TR}{100} \right)\] \[81=72\left( 1+\frac{T\times \frac{25}{4}}{100} \right)\] \[\frac{16+T}{16}=\frac{81}{72}\] 16 + T = 18 T = 2 years.
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